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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1594847Generated: October 30, 2026

Water → 2-(3-Methyl-2-oxo-piperidin-1-yl)-phenol

https://huagongshe.com/reaction/1594847

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantMethyl iodideHCID 6328—
ReactantLithium diethylamideHCID 11137085—
Reactant1-(2-Hydroxyphenyl)piperidin-2-oneHCID 11506609—
SolventTetrahydrofuranHCID 8028—
Product2-(3-Methyl-2-oxo-piperidin-1-yl)-phenolHCID 21706246—

Reaction Steps

Lithium diethylamide (2M solution in THF) (3.92 mL, 7.84 mmol) was added to a solution of 2-(2-oxo-piperidin-1-yl)-phenol (as described in Example 1, Step F) (0.50 g, 2.61 mmol) in THF (5 mL) at −78° C. with stirring under Ar. After 30 min, iodomethane (0.488 mL, 7.84 mmol) was added and the reaction left to come to room temperature overnight. The reaction was treated with H2O, concentrated to remove the THF, then partitioned between diethyl ether and H2O. The organic layer was separated, washed with brine, dried (Na2SO4), filtered, and concentrated to dryness to give the title compound after chromatography (silica gel, 1% CH3OH, 29% EtOAc, 70% hexane).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06284755B1
Source datasetuspto-grants-2001_09
ORD IDord-bc9252cd7bc84985a52bca389227915a
Source noteuspto-grants-2001_09